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   &#160;<span id="projectnumber">Version 1.4.1</span>
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<div class="title">/package/taxonomy element </div>  </div>
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<div class="textblock"><p>Group to list description elements that define component classes and component group names used within a package description. This element is optional.</p>
<p><b>Example:</b> </p>
<div class="fragment"><div class="line">&lt;package&gt;</div>
<div class="line">  ...</div>
<div class="line">  &lt;taxonomy&gt;</div>
<div class="line">    ...</div>
<div class="line">  &lt;/taxonomy&gt;</div>
<div class="line">  ...</div>
<div class="line">&lt;/package&gt;</div>
</div><!-- fragment --><p>&#160;</p>
<table  class="cmtable" summary="Element: Taxonomy">
<tr>
<th>Parent Element </th><th colspan="3">Element Chain  </th></tr>
<tr>
<td><a class="el" href="pdsc_package_pg.html#element_package">package</a> </td><td colspan="3"><a class="el" href="pdsc_package_pg.html#element_package">/package</a>  </td></tr>
<tr>
<th>Child Elements </th><th>Description </th><th>Type </th><th>Occurrence  </th></tr>
<tr>
<td><a class="el" href="element_taxonomy.html#element_taxonomyDescription">description</a> </td><td>Describes or defines a component class or class-group combination. </td><td>TaxonomyDescriptionType </td><td>1..*   </td></tr>
</table>
<p>&#160;</p>
<hr/>
<h1><a class="anchor" id="element_taxonomyDescription"></a>
/package/taxonomy/description</h1>
<p>This element describes a component class or the combination between a component class and a component group. Components are categorized by <em>Cclass</em> and <em>Cgroup</em>. The creator of a package can define names for <em>Cclass</em> and <em>Cgroup</em>. Thus, configuration tools can display the set of available components. A document can be referenced using the attribute <em>doc</em>. The attribute <em>generator</em> can be used to reference to a generator tool. The <em>id</em> of the generator needs to be the same as specified in the element <a class="el" href="pdsc_generators_pg.html#element_generator">/package/generators/generator</a>. The description itself is a string entered between the opening and closing tags of the element <b>description</b>.</p>
<p>It is recommended to use an already agreed taxonomy for interchangeable components. For example, the combination of class <span class="XML-Token">CMSIS</span> and group <span class="XML-Token">Startup</span> is defined for the device-specific CMSIS-CORE files.</p>
<p>&#160;</p>
<p><b>Example:</b> </p>
<div class="fragment"><div class="line">&lt;taxonomy&gt;</div>
<div class="line">  &lt;description Cclass=<span class="stringliteral">&quot;Board Support&quot;</span>&gt;Generic Interfaces <span class="keywordflow">for</span> Evaluation and Development Boards&lt;/description&gt;</div>
<div class="line">  &lt;description Cclass=<span class="stringliteral">&quot;CMSIS&quot;</span> doc=<span class="stringliteral">&quot;CMSIS/Documentation/General/html/index.html&quot;</span>&gt;Cortex Microcontroller Software Interface Components&lt;/description&gt;</div>
<div class="line">  &lt;description Cclass=<span class="stringliteral">&quot;Device&quot;</span> doc=<span class="stringliteral">&quot;CMSIS/Documentation/Core/html/index.html&quot;</span>&gt;Startup, System Setup&lt;/description&gt;</div>
<div class="line">  &lt;description Cclass=<span class="stringliteral">&quot;CMSIS Driver&quot;</span> doc=<span class="stringliteral">&quot;CMSIS/Documentation/Driver/html/index.html&quot;</span>&gt;Unified Device Drivers compliant to CMSIS-Driver Specifications&lt;/description&gt;</div>
<div class="line">  &lt;description Cclass=<span class="stringliteral">&quot;File System&quot;</span>&gt;File Drive Support and File System&lt;/description&gt;</div>
<div class="line">  &lt;description Cclass=<span class="stringliteral">&quot;Graphics&quot;</span>&gt;Graphical User Interface&lt;/description&gt;</div>
<div class="line">  &lt;description Cclass=<span class="stringliteral">&quot;Network&quot;</span>&gt;Network Stack <span class="keyword">using</span> Internet Protocols&lt;/description&gt;</div>
<div class="line">  &lt;description Cclass=<span class="stringliteral">&quot;USB&quot;</span>&gt;Universal Serial Bus Stack&lt;/description&gt;</div>
<div class="line">&lt;/taxonomy&gt;</div>
</div><!-- fragment --><dl class="section note"><dt>Note</dt><dd>You <b>must</b> <b>not</b> use Windows or Linux <a href="http://en.wikipedia.org/wiki/Filename#Reserved_characters_and_words" target="_blank">reserved characters</a> for <em>Cclass</em>, <em>Cgrouop</em>, and <em>Csub</em> names! Some development tools use these names to create a directory structure for the software components in projects. Reserved characters are: <pre class="fragment">&lt; (less than)
&gt; (greater than)
: (colon)
" (double quote)
/ (forward slash)
\ (backslash)
| (vertical bar or pipe)
? (question mark)
* (asterisk)
</pre></dd></dl>
<p>&#160;</p>
<table  class="cmtable" summary="Element: Taxonomy">
<tr>
<th>Parent Element </th><th colspan="3">Element Chain  </th></tr>
<tr>
<td><a class="el" href="element_taxonomy.html">taxonomy</a> </td><td colspan="3"><a class="el" href="element_taxonomy.html">/package/taxonomy element</a>  </td></tr>
<tr>
<th>Attributes </th><th>Description </th><th>Type </th><th>Use  </th></tr>
<tr>
<td>Cclass </td><td>Component Class Name. Can be defined by the creator of the package. Predefined values can be used as listed in the table <a class="el" href="element_taxonomy.html#CclassType">Component Classes</a>. </td><td>Cclass </td><td>required  </td></tr>
<tr>
<td>Cgroup </td><td>Component Group Name. Can be defined by the creator of the package. Predefined values can be used as listed in the table <a class="el" href="element_taxonomy.html#CgroupType">Component Groups</a>. </td><td>CgroupType </td><td>optional  </td></tr>
<tr>
<td>doc </td><td>Reference to documentation. </td><td>xs:string  </td><td>optional  </td></tr>
<tr>
<td>generator </td><td>Reference to a generator. Enter the <b>id</b> value of the element <a class="el" href="pdsc_generators_pg.html#element_generator">/package/generators/generator</a>. </td><td>xs:string  </td><td>optional  </td></tr>
</table>
<p>&#160;</p>
<p><a class="anchor" id="CclassType"></a><b>Table: Component Classes</b></p>
<p>Component Class names are strings with a minimum length of 3 characters and a maximum length of 32 characters. Component class names are specified in the section <a class="el" href="element_taxonomy.html#element_taxonomyDescription">/package/taxonomy/description</a>.</p>
<p>These values can be used in the elements:</p>
<ul>
<li><a class="el" href="pdsc_conditions_pg.html#element_accept">/package/conditions/condition/accept</a></li>
<li><a class="el" href="pdsc_conditions_pg.html#element_require">/package/conditions/condition/require</a></li>
<li><a class="el" href="pdsc_conditions_pg.html#element_deny">/package/conditions/condition/deny</a></li>
<li><a class="el" href="pdsc_examples_pg.html#element_example_attribute_component">/package/examples/example/attributes/component</a></li>
<li><a class="el" href="pdsc_components_pg.html#element_component">/package/components/.../component</a></li>
<li><a class="el" href="pdsc_components_pg.html#element_bundle">/package/components/bundle</a></li>
<li><a class="el" href="pdsc_apis_pg.html#element_api">/package/apis/api</a></li>
<li><a class="el" href="element_taxonomy.html#element_taxonomyDescription">/package/taxonomy/description</a></li>
</ul>
<p><b>Example:</b> </p>
<div class="fragment"><div class="line">&lt;... Cclass=<span class="stringliteral">&quot;CMSIS&quot;</span> ...&gt;</div>
</div><!-- fragment --> <p>&#160;</p>
<p>The table lists predefined Component Classes. </p>
<table  class="cmtable" summary="Predefined Cclass names">
<tr>
<th>Cclass= </th><th>Description  </th></tr>
<tr>
<td class="XML-Token">Board Support </td><td>Components providing interfaces for Evaluation and Development Boards </td></tr>
<tr>
<td class="XML-Token">CMSIS </td><td>Components defined by Cortex Microcontroller Software Interface Standard (e.g. <a href="../../Core/html/index.html" class="el">CMSIS-CORE</a>, <a href="../../DSP/html/index.html" class="el">CMSIS-DSP</a> and <a href="../../RTOS/html/index.html" class="el">CMSIS-RTOS</a>)  </td></tr>
<tr>
<td class="XML-Token">Device </td><td>Components containing device specific implementations of non-standard APIs (e.g. HAL drivers, CMSIS Startup files)  </td></tr>
<tr>
<td class="XML-Token">CMSIS Driver </td><td>Components implementing unified device drivers compliant to <a href="../../Driver/html/index.html" class="el">CMSIS-Driver</a> (e.g. UART, SPI, USB, etc.)   </td></tr>
<tr>
<td class="XML-Token">File System </td><td>Components implementing some kind of File Systems (e.g. Flash or RAM based file systems)  </td></tr>
<tr>
<td class="XML-Token">Graphics </td><td>Components implementing some kind of Display and Graphics Software  </td></tr>
<tr>
<td class="XML-Token">Network </td><td>Components implementing some kind of Network Communications (e.g. TCP/IP Stack)  </td></tr>
<tr>
<td class="XML-Token">USB </td><td>Components implementing some kind of USB interfaces (e.g. Host and Device interfaces)  </td></tr>
</table>
<p>&#160;</p>
<p><a class="anchor" id="CgroupType"></a><b>Table: Component Groups</b></p>
<p>Component Group names are specified by the element <b>Cgroup</b> and create categories within a Component Class specified by the element <b>Cclass</b>. The creator of the PACK can define the names in the element <a class="el" href="element_taxonomy.html#element_taxonomyDescription">/package/taxonomy/description</a>. A Component Group name is string with a length between 3 and 32 characters.</p>
<p><b>Example:</b> </p>
<div class="fragment"><div class="line">&lt;... Cgroup=<span class="stringliteral">&quot;RTOS&quot;</span> Cclass=<span class="stringliteral">&quot;CMSIS&quot;</span>...&gt;</div>
</div><!-- fragment --> <p>&#160;</p>
<p>Component Groups can be used in the elements:</p>
<ul>
<li><a class="el" href="pdsc_conditions_pg.html#element_accept">/package/conditions/condition/accept</a></li>
<li><a class="el" href="pdsc_conditions_pg.html#element_require">/package/conditions/condition/require</a></li>
<li><a class="el" href="pdsc_conditions_pg.html#element_deny">/package/conditions/condition/deny</a></li>
<li><a class="el" href="pdsc_examples_pg.html#element_example_attribute_component">/package/examples/example/attributes/component</a></li>
<li><a class="el" href="pdsc_components_pg.html#element_component">/package/components/.../component</a></li>
<li><a class="el" href="pdsc_apis_pg.html#element_api">/package/apis/api</a></li>
<li><a class="el" href="element_taxonomy.html#element_taxonomyDescription">/package/taxonomy/description</a></li>
</ul>
<p>The table lists predefined values for the Component Class <b>Cclass="CMSIS"</b>. No other Component Groups have been defined so far. </p>
<table  class="cmtable" summary="Predefined Cgroup names for Component Class CMSIS">
<tr>
<th>Cgroup= </th><th>Description  </th></tr>
<tr>
<td class="XML-Token">CORE </td><td>A component containing device support in accordance to the <a href="../../Core/html/index.html" class="el">CMSIS-CORE</a> specification (startup, system and device files)  </td></tr>
<tr>
<td class="XML-Token">DSP </td><td>A component implementing the <a href="../../DSP/html/index.html" class="el">CMSIS-DSP</a> API specification.  </td></tr>
<tr>
<td class="XML-Token">RTOS </td><td>A component implementing the <a href="../../RTOS/html/index.html" class="el">CMSIS-RTOS</a> API specification.  </td></tr>
</table>
<p>&#160;</p>
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